2. Complete the sentences with the appropriate life stage words. 1. Many young adults still live with their parents because they can’t buy a house. 2. When you’re two years old, you’re at the toddler stage. 3. Everyone in the family is very happy when a baby arrives. 4. When you’re a senior citizen, you usually don’t work and you often have grandchildren. 5. Middle-aged people aren’t young but they aren’t old, either. 6. When you’re a teenager, it’s often a difficult time. You aren’t a child, but you aren’t an adult either.